This match will likely be decided by two key factors, both of which lean in Dortmund’s favor.

The first is form. Dortmund come into this clash unbeaten in their last seven matches, with five wins and two draws, while Bilbao have struggled recently, suffering four defeats and managing just one draw.

The second factor is Bilbao’s away record. They are largely a home-dependent side, especially in European competition. Last season, they played five matches on the road in Europe, losing three, drawing once, and securing just a single victory against Fenerbahce.